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Nezavi [6.7K]
2 years ago
7

Tell whether the ratios form a proportion. 1/3, 7/21

Mathematics
2 answers:
Mandarinka [93]2 years ago
7 0

Answer:

i would say yes

my work :

so i did 21 times 1 which is 21.

Tben i did 3 times 7 which is also 21.

So in conclusion i would say yes but i can't guarantee that

Anuta_ua [19.1K]2 years ago
6 0

Answer:

Yes

Step-by-step explanation:

7/21 -> Divide both sides by 7 which gets you 1/3

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Complete the input-output table for the linear function y = 3x.
andrey2020 [161]

Answer:

A= -6

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5 0
3 years ago
How do you get the answer to this problem?<br> (2^3)(2^-7)
postnew [5]
(2^3)=2*2*2=8
(2^-7)=1/2*1/2*1/2*1/2*1/2*1/2*1/2=1/128
8*1/128=1/16=.0625
7 0
3 years ago
As an estimation we are told 5 miles is 8 km.<br> Convert 27.4 miles to km.
Oksanka [162]

Answer:

  • ≈ 44 km

Step-by-step explanation:

5 miles = 8 km

<u>Then:</u>

  • 1 mile = 8/5 km

<u>Then 27.4 miles is:</u>

  • 27.4*8/5 = 43.84 ≈ 44 km
6 0
3 years ago
When 4 is added to five times a number the sum is 34. Find the number. *
slavikrds [6]

Answer:

let the number be 'x'

now,

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  • 5x=34-4
  • x=30/5
  • x=6

so, the number is 6.

hope it helps

stay safe, healthy and happy.

8 0
2 years ago
Which of these phrases contain a variable? Check all that apply.
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Answer:

The length of the hall way

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4 0
3 years ago
Read 2 more answers
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